
Notes: For high performance engines only. Cast iron or aluminum head. Stainless steel core laminate. Pre flattened steel wire combustion seal. 4.370" bore. 0.039" thickness. Volume: 9.7cc. Fits Gen. IV passenger car and H/P block. Pre 1971 blocks may require modification. Fits Gen. IV truck and Bow Tie block. Fits Gen. V block. Fits Gen. VI block. One coolant hole per end. Three lower coolant holes. Minimal brinelling of aluminum head.
Notes: Non street legal. W8 with 18 bolt heads. With valve pockets. Pre flattened steel wire combustion seal. Steel core laminate construction. Minimal brinelling of aluminum head.
Notes: Non street legal. SB2 with inboard cooling. MLS bore bead combustion seal. PermaTorque MLS multi layer steel construction. Can be used on aluminum blocks with liners. Minimal brinelling of aluminum head.
Notes: For high performance engines only. Except Hemi engine. Steel core laminate. Pre flattened steel wire combustion seal. 4.410" bore. 0.039" thickness. Volume: 9.9cc. Minimal brinelling of aluminum head.
Notes: For high performance engines only. Cast iron or aluminum head. Steel core laminate. Pre flattened steel wire combustion seal. 4.166" bore. 0.041" thickness. Volume: 9.1cc. Can be used on 400 race engines. Up to 4.155" maximum bore with minimal chamfer. Can be used on aluminum blocks with liners. Minimal brinelling of aluminum head.
Notes: Non street legal. 4.210" bore. Will also fit Yates cylinder head. MLS bore bead combustion seal. PermaTorque MLS multi layer steel construction. 3 active layers. 1 shim layer.
Notes: Non street legal. Cast iron or aluminum head. Pre flattened steel wire combustion seal. Stainless steel core laminate construction. Can be used on aluminum blocks with liners. Minimal brinelling of aluminum head.
Notes: For high performance engines only. Cast iron or aluminum head. Steel core laminate. Pre flattened steel wire combustion seal. 4.190" bore. 0.041" thickness. Volume: 9.2cc. Can be used on 400 race engines. Can be used on aluminum blocks with liners. Minimal brinelling of aluminum head.
Notes: Non street legal. 0.041" thickness. Cast iron or aluminum head. MLS bore bead combustion seal. PermaTorque MLS multi layer steel construction. Can be used on aluminum blocks with liners. Minimal brinelling of aluminum head.
Notes: Non street legal. Cast iron or aluminum head. Pre flattened steel wire combustion seal. Steel core laminate construction. Extra thick to reduce compression and correct piston valve clearance problems. Can be used on aluminum blocks with liners. Minimal brinelling of aluminum head.